%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(heart_SUITE).
-include("test_server.hrl").
-export([all/1, ostype/1, start/1, restart/1, reboot/1, set_cmd/1, clear_cmd/1,
dont_drop/1, kill_pid/1, fini/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
-export([start_heart_stress/1, mangle/1, suicide_by_heart/0]).
-define(DEFAULT_TIMEOUT_SECS, 120).
init_per_testcase(_Func, Config) ->
Dog=test_server:timetrap(test_server:seconds(?DEFAULT_TIMEOUT_SECS)),
[{watchdog, Dog}|Config].
end_per_testcase(_Func, Config) ->
Nodes = nodes(),
lists:foreach(fun(X) ->
NNam = list_to_atom(hd(string:tokens(atom_to_list(X),"@"))),
case NNam of
heart_test ->
?t:format(1, "WARNING: Killed ~p~n", [X]),
rpc:cast(X, erlang, halt, []);
_ ->
ok
end
end, Nodes),
Dog=?config(watchdog, Config),
test_server:timetrap_cancel(Dog).
%%-----------------------------------------------------------------
%% Test suite for heart.
%% Should be started in a CC view with:
%% erl -sname master -rsh ctrsh
%%-----------------------------------------------------------------
all(suite) ->
[{conf, ostype, [start, restart, reboot,
set_cmd, clear_cmd, kill_pid], fini}].
ostype(Config) when is_list(Config) ->
case os:type() of
{win32, windows} ->
{skipped, "No use to run on Windows 95/98"};
_ ->
Config
end.
fini(Config) when is_list(Config) ->
Config.
start_check(Type, Name) ->
Args = case ?t:os_type() of
{win32,_} -> "-heart -env HEART_COMMAND no_reboot";
_ -> "-heart"
end,
{ok, Node} = case Type of
loose ->
loose_node:start(Name, Args, ?DEFAULT_TIMEOUT_SECS);
_ ->
?t:start_node(Name, Type, [{args, Args}])
end,
erlang:monitor_node(Node, true),
case rpc:call(Node, erlang, whereis, [heart]) of
Pid when is_pid(Pid) ->
ok;
_ ->
test_server:fail(heart_not_started)
end,
{ok, Node}.
start(doc) -> [];
start(suite) -> {req, [{time, 10}]};
start(Config) when is_list(Config) ->
?line {ok, Node} = start_check(slave, heart_test),
?line rpc:call(Node, init, reboot, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed)
end,
test_server:sleep(5000),
?line case net_adm:ping(Node) of
pang ->
ok;
_ ->
test_server:fail(node_rebooted)
end,
test_server:stop_node(Node).
%% Also test fixed bug in R1B (it was not possible to
%% do init:stop/0 on a restarted system before)
%% Slave executes erlang:halt() on master nodedown.
%% Therefore the slave process has to be killed
%% before restart.
restart(doc) -> [];
restart(suite) ->
case ?t:os_type() of
{Fam, _} when Fam == unix; Fam == win32 ->
{req, [{time,10}]};
_ ->
{skip, "Only run on unix and win32"}
end;
restart(Config) when is_list(Config) ->
?line {ok, Node} = start_check(loose, heart_test),
?line rpc:call(Node, init, restart, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed)
end,
test_server:sleep(5000),
?line case net_adm:ping(Node) of
pong ->
erlang:monitor_node(Node, true),
?line rpc:call(Node, init, stop, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed2)
end,
ok;
_ ->
test_server:fail(node_not_restarted)
end,
loose_node:stop(Node).
reboot(doc) -> [];
reboot(suite) -> {req, [{time, 10}]};
reboot(Config) when is_list(Config) ->
{ok, Node} = start_check(slave, heart_test),
?line ok = rpc:call(Node, heart, set_cmd,
[atom_to_list(lib:progname()) ++
" -noshell -heart " ++ name(Node) ++ "&"]),
?line rpc:call(Node, init, reboot, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed)
end,
test_server:sleep(5000),
?line case net_adm:ping(Node) of
pong ->
erlang:monitor_node(Node, true),
?line rpc:call(Node, init, reboot, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed2)
end,
ok;
_ ->
test_server:fail(node_not_rebooted)
end,
ok.
%% Only tests bad command, correct behaviour is tested in reboot/1.
set_cmd(suite) -> [];
set_cmd(Config) when is_list(Config) ->
?line {ok, Node} = start_check(slave, heart_test),
Cmd = wrong_atom,
?line {error, {bad_cmd, Cmd}} = rpc:call(Node, heart, set_cmd, [Cmd]),
Cmd1 = lists:duplicate(2047, $a),
?line {error, {bad_cmd, Cmd1}} = rpc:call(Node, heart, set_cmd, [Cmd1]),
Cmd2 = lists:duplicate(28, $a),
?line ok = rpc:call(Node, heart, set_cmd, [Cmd2]),
Cmd3 = lists:duplicate(2000, $a),
?line ok = rpc:call(Node, heart, set_cmd, [Cmd3]),
stop_node(Node),
ok.
clear_cmd(suite) -> {req,[{time,15}]};
clear_cmd(Config) when is_list(Config) ->
?line {ok, Node} = start_check(slave, heart_test),
?line ok = rpc:call(Node, heart, set_cmd,
[atom_to_list(lib:progname()) ++
" -noshell -heart " ++ name(Node) ++ "&"]),
?line rpc:call(Node, init, reboot, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed)
end,
test_server:sleep(5000),
?line case net_adm:ping(Node) of
pong ->
erlang:monitor_node(Node, true);
_ ->
test_server:fail(node_not_rebooted)
end,
?line ok = rpc:call(Node, heart, set_cmd,
["erl -noshell -heart " ++ name(Node) ++ "&"]),
?line ok = rpc:call(Node, heart, clear_cmd, []),
?line rpc:call(Node, init, reboot, []),
receive
{nodedown, Node} ->
ok
after 2000 ->
test_server:fail(node_not_closed)
end,
test_server:sleep(5000),
?line case net_adm:ping(Node) of
pang ->
ok;
_ ->
test_server:fail(node_rebooted)
end,
ok.
dont_drop(suite) ->
%%% Removed as it may crash epmd/distribution in colourful
%%% ways. While we ARE finding out WHY, it would
%%% be nice for others to be able to run the kernel test suite
%%% without "exploding machines", so thats why I removed it for now.
[];
dont_drop(doc) ->
["Tests that the heart command does not get dropped when ",
"set just before halt on very high I/O load."];
dont_drop(Config) when is_list(Config) ->
%%% Have to do it some times to make it happen...
case os:type() of
vxworks ->
{comment, "No use to run with slaves on other nodes..."};
_ ->
[ok,ok,ok,ok,ok,ok,ok,ok,ok,ok] = do_dont_drop(Config,10),
ok
end.
do_dont_drop(_,0) ->
[];
do_dont_drop(Config,N) ->
%% Name of first slave node
?line NN1 = atom_to_list(?MODULE) ++ "slave_1",
%% Name of node started by heart on failure
?line NN2 = atom_to_list(?MODULE) ++ "slave_2",
%% Name of node started by heart on success
?line NN3 = atom_to_list(?MODULE) ++ "slave_3",
?line Host = hd(tl(string:tokens(atom_to_list(node()),"@"))),
%% The initial heart command
?line FirstCmd = erl() ++ name(NN2 ++ "@" ++ Host),
%% Separated the parameters to start_node_run for clarity...
?line Name = list_to_atom(NN1),
?line Env = [{"HEART_COMMAND", FirstCmd}],
?line Func = "start_heart_stress",
?line Arg = NN3 ++ "@" ++ Host ++ " " ++
filename:join(?config(data_dir, Config), "simple_echo"),
?line start_node_run(Name,Env,Func,Arg),
?line case wait_for_any_of(list_to_atom(NN2 ++ "@" ++ Host),
list_to_atom(NN3 ++ "@" ++ Host)) of
2 ->
?line [ok | do_dont_drop(Config,N-1)];
_ ->
?line false
end.
wait_for_any_of(N1,N2) ->
?line wait_for_any_of(N1,N2,45).
wait_for_any_of(_N1,_N2,0) ->
?line false;
wait_for_any_of(N1,N2,Times) ->
?line receive
after 1000 ->
?line ok
end,
?line case net_adm:ping(N1) of
pang ->
?line case net_adm:ping(N2) of
pang ->
?line wait_for_any_of(N1,N2,Times - 1);
pong ->
?line rpc:call(N2,init,stop,[]),
?line 2
end;
pong ->
?line rpc:call(N1,init,stop,[]),
?line 1
end.
kill_pid(suite) ->
[];
kill_pid(doc) ->
["Tests that heart kills the old erlang node before executing ",
"heart command."];
kill_pid(Config) when is_list(Config) ->
%%% Have to do it some times to make it happen...
case os:type() of
vxworks ->
{comment, "No use to run with slaves on other nodes..."};
_ ->
ok = do_kill_pid(Config)
end.
do_kill_pid(_Config) ->
Name = heart_test,
Env = [{"HEART_COMMAND", "nickeNyfikenFarEttJobb"}],
{ok,Node} = start_node_run(Name,Env,suicide_by_heart,[]),
ok = wait_for_node(Node,15),
erlang:monitor_node(Node, true),
receive
{nodedown,Node} ->
ok
after 30000 ->
false
end.
wait_for_node(_,0) ->
false;
wait_for_node(Node,N) ->
receive
after 1000 ->
ok
end,
case net_adm:ping(Node) of
pong ->
ok;
pang ->
wait_for_node(Node,N-1)
end.
erl() ->
case os:type() of
{win32,_} ->
"werl ";
_ ->
"erl "
end.
name(Node) when is_list(Node) -> name(Node,[]);
name(Node) when is_atom(Node) -> name(atom_to_list(Node),[]).
name([$@|Node], Name) ->
case lists:member($., Node) of
true ->
"-name " ++ lists:reverse(Name);
_ ->
"-sname " ++ lists:reverse(Name)
end;
name([H|T], Name) ->
name(T, [H|Name]).
atom_conv(A) when is_atom(A) ->
atom_to_list(A);
atom_conv(A) when is_list(A) ->
A.
env_conv([]) ->
[];
env_conv([{X,Y}|T]) ->
atom_conv(X) ++ " \"" ++ atom_conv(Y) ++ "\" " ++ env_conv(T).
%%%
%%% Starts a node and runs a function in this
%%% module.
%%% Name is the node name as either atom or string,
%%% Env is a list of Tuples containing name-value pairs.
%%% Function is the function to run in this module
%%% Argument is the argument(s) to send through erl -s
%%%
start_node_run(Name, Env, Function, Argument) ->
?line PA = filename:dirname(code:which(?MODULE)),
?line Params = "-heart -env " ++ env_conv(Env) ++ " -pa " ++ PA ++
" -s " ++
atom_conv(?MODULE) ++ " " ++ atom_conv(Function) ++ " " ++
atom_conv(Argument),
?line start_node(Name, Params).
start_node(Name, Param) ->
test_server:start_node(Name, slave, [{args, Param}]).
stop_node(Node) ->
test_server:stop_node(Node).
%%% This code is run in a slave node to ensure that
%%% A heart command really gets set syncronously
%%% and cannot get "dropped".
send_to(_,_,0) ->
ok;
send_to(Port,D,N) ->
Port ! {self(),{command,D}},
send_to(Port,D,N-1).
receive_from(_,_,0) ->
ok;
receive_from(Port,D,N) ->
receive
{Port, {data,{eol,_Data}}} ->
receive_from(Port,D,N-1);
X ->
io:format("Got garbage ~p~n",[X])
end.
mangle(PP) when is_list(PP) ->
Port = open_port({spawn,PP},[{line,100}]),
mangle(Port);
mangle(Port) ->
send_to(Port, "ABCDEFGHIJ" ++ io_lib:nl(),1),
receive_from(Port,"ABCDEFGHIJ",1),
mangle(Port).
explode(0,_) ->
ok;
explode(N,PP) ->
spawn(?MODULE,mangle,[PP]),
explode(N-1,PP).
start_heart_stress([NewName,PortProgram]) ->
explode(10,atom_to_list(PortProgram)),
NewCmd = erl() ++ name(NewName),
%%io:format("~p~n",[NewCmd]),
receive
after 10000 ->
heart:set_cmd(NewCmd),
halt()
end.
suicide_by_heart() ->
%%io:format("Suicide starting...~n"),
open_port({spawn,"heart -ht 11 -pid "++os:getpid()},[{packet,2}]),
receive X -> X end,
%% Just hang and wait for heart to timeout
receive
{makaronipudding} ->
sallad
end.
